21389+6446
- Unique Name: 21389+6446STI1043
- RA: 21 38 51.20
- Dec: +64 46 10.6
- Discoverer: STI
- Discoverer Number: 1043
- Components:
- First year: 1895
- Last year: 2011
- Observations: 9
- First position angle: 50
- Last position angle: 46
- First separation: 5.0
- Last separation: 5.3
- Mag first component: 10.51
- Mag second component: 11.76
- Spectral type: A2
- Primary proper motion RA: -6
- Primary proper motion DEC: -8
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -6
- Durchmusterung: +64 1578
- Notes: